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Finding the Third Proportional to 2,240 and 4,922

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Solution

The third proportional to 2,240 and 4,922 is: 10,815.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,240 : 4,922 = 4,922 : x
  2. Step 2: Convert to fraction form
    2,240/4,922 = 4,922/x
  3. Step 3: Cross multiply
    2,240x = 4,922 × 4,922
  4. Step 4: Simplify right side
    2,240x = 24,226,084
  5. Step 5: Solve for x
    x = 24,226,084/2,240
  6. Step 6: Final answer
    x = 10,815.22

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.